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  Temperature dependence of the Kondo resonance in YbAl3

Tjeng, L. H., Oh, S.-J., Cho, E.-J., Lin, H.-J., Chen, C. T., Gweon, G.-H., et al. (1993). Temperature dependence of the Kondo resonance in YbAl3. Physical Review Letters, 71(9), 1419-1422. doi:10.1103/PhysRevLett.71.1419.

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 Creators:
Tjeng, L. H.1, Author              
Oh, S.-J.2, Author
Cho, E.-J.2, Author
Lin, H.-J.2, Author
Chen, C. T.2, Author
Gweon, G.-H.2, Author
Park, J.-H.2, Author
Allen, J. W.2, Author
Suzuki, T.2, Author
Makivić, M. S.2, Author
Cox, D. L.2, Author
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1External Organizations, ou_persistent22              
2external, ou_persistent22              

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 Abstract: We report the observation of a strong temperature dependence of the Kondo resonance in the valence-band photoemission spectrum and of the 3d --> 4f white line in the x-ray absorption spectrum of YbAl3. The asymmetric Kondo resonance has a binding energy of approximately 35 meV with a approximately 50 meV width. The temperature dependence of the Yb 4f spectral features and valence are well reproduced by Anderson impurity calculations with a Kondo temperature of T(K) almost-equal-to 400 K, demonstrating that both spectroscopic and near ground state properties can be described within a unified theoretical framework.

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 Dates: 1993-08-30
 Publication Status: Published in print
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Title: Physical Review Letters
  Other : Phys. Rev. Lett.
Source Genre: Journal
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Publ. Info: Woodbury, N.Y. : American Physical Society
Pages: - Volume / Issue: 71 (9) Sequence Number: - Start / End Page: 1419 - 1422 Identifier: ISSN: 0031-9007
CoNE: https://pure.mpg.de/cone/journals/resource/954925433406_1